Chaddock reflex


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.
Related to Chaddock reflex: Oppenheim reflex, Chaddock's sign, Gordon reflex

Chad·dock sign

(chad'ok),
when the lateral malleolar skin area is irritated, extension of the great toe occurs in cases of organic disease of the corticospinal reflex paths.
Synonym(s): Chaddock reflex

Chaddock reflex

Etymology: Charles G. Chaddock, American neurologist, 1861-1936
an abnormal reflex, induced by firmly stroking the ulnar surface of the forearm, characterized by flexion of the wrist and extension of the fingers in fanlike position. It is seen on the affected side in hemiplegia. Compare Gordon's reflex, Oppenheim reflex. See also Babinski's reflex.

chad·dock sign

, Chaddock reflex (chad'ŏk sīn, rē'fleks)
When the external malleolar skin area is irritated, extension of the great toe occurs in cases of organic disease of the corticospinal reflex paths.

Chaddock,

Charles G., U.S. neurologist, 1861-1936.
Chaddock reflex - Synonym(s): Chaddock sign
Chaddock sign - when the external malleolar skin area is irritated, extension of the great toe occurs in cases of organic disease of the corticospinal reflex paths. Synonym(s): Chaddock reflex; external malleolar sign